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Pulmonary drug delivery

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https://www.readbyqxmd.com/read/27915426/impact-of-a-medication-therapy-management-service-on-the-clinical-status-of-patients-with-chronic-obstructive-pulmonary-disease
#1
Kirla B Detoni, Isabela V Oliveira, Mariana M G Nascimento, Thaís R Caux, Mateus R Alves, Djenane Ramalho-de-Oliveira
Background At this moment, there is no information in the literature showing the impact of comprehensive medication management (CMM) service delivered to patients with chronic obstructive pulmonary disease. Objective This study aims to present the clinical outcomes of this service provided to patients with chronic obstructive pulmonary disease. Settings Public specialty pharmacy where high cost drug treatments are provided for medical conditions not covered by the primary care such as COPD, located in Minas Gerais State, Brazil...
December 3, 2016: International Journal of Clinical Pharmacy
https://www.readbyqxmd.com/read/27913241/evaluation-of-highly-branched-cyclic-dextrin-in-inhalable-particles-of-combined-antibiotics-for-the-pulmonary-delivery-of-anti-tuberculosis-drugs
#2
Kazunori Kadota, Arisa Senda, Hideaki Tagishi, John Oluwasogo Ayorinde, Yuichi Tozuka
This work aims to identify a suitable formulation for the pulmonary delivery of combinations of inhalational drugs using highly branched cyclic dextrin (HBCD) macromolecules. We compared the effectiveness between powders prepared from HBCD with those prepared from five alternative excipients (lactose, maltose, sucrose, β-cyclodextrin and methyl β-cyclodextrin) in the pulmonary delivery of a single-dosage form of two anti-tuberculosis drugs (isoniazid and rifampicin). Fine particles of untreated active pharmaceutical ingredients (APIs) and combination products using excipients were prepared by spray drying...
November 29, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27910739/overview-on-therapeutic-applications-of-microparticulate-drug-delivery-systems
#3
Swarna Bale, Amit Khurana, A Shiva Shankar Reddy, Mandip Singh, Chandraiah Godugu
Research in novel drug delivery systems is being explored competitively in order to attain maximum therapeutic effect while minimizing the adverse effects. Despite several advancements in pharmaceutical formulations, one of the major challenges still persisting is sustained drug release. Microencapsulation enacts as an intelligent approach with a strong therapeutic impact and is in demand globally in medical technology due to its specific and attractive properties, including biocompatibility, stability, target specificity, uniform encapsulation, better compliance, and controlled and sustained release patterns that are responsible for diminishing the toxicity and dosage frequency...
2016: Critical Reviews in Therapeutic Drug Carrier Systems
https://www.readbyqxmd.com/read/27910061/inhaled-gene-transfer-for-pulmonary-circulation
#4
Jaume Aguero, Lahouaria Hadri, Nadjib Hammoudi, Lauren Leonardson, Roger J Hajjar, Kiyotake Ishikawa
Chronic pulmonary hypertension (PH) is associated with right ventricular failure and high mortality regardless of the underlying disease. Currently, therapies can improve clinical outcomes in specific subsets of patients, but have little impact on the progression of pulmonary vascular remodeling. Upon new advances in vector development and delivery techniques, gene therapy is a novel strategy in this field with the potential of overcoming the main limitations of approved drug therapies: modulation of novel anti-remodeling targets and selective pulmonary vasculature targeting with minimal systemic effects...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27890713/allogeneic-human-mesenchymal-stem-cells-in-patients-with-idiopathic-pulmonary-fibrosis-via-intravenous-delivery-aether-a-phase-i-safety-clinical-trial
#5
Marilyn K Glassberg, Julia Minkiewicz, Rebecca L Toonkel, Emmanuelle S Simonet, Gustavo A Rubio, Darcy Difede, Shirin Shafazand, Aisha Khan, Marietsy V Pujol, Vincent F LaRussa, Lisa H Lancaster, Glenn D Rosen, Joel Fishman, Yolanda N Mageto, Adam Mendizabal, Joshua M Hare
BACKGROUND: Despite recent FDA approval of two new drugs for idiopathic pulmonary fibrosis (IPF), curative therapies remain elusive and mortality remains high. Pre-clinical and clinical data support the safety of human mesenchymal stem cells as a potential novel therapy for this fatal condition. The AETHER trial was the first study designed to evaluate the safety of a single infusion of bone marrow-derived mesenchymal stem cells in patients with idiopathic pulmonary fibrosis. METHODS: Nine patients with mild to moderate IPF were sequentially assigned to one of three cohorts and dosed with a single intravenous infusion of 20, 100, or 200 x 10(6) human bone marrow-derived mesenchymal stem cells per infusion from young, unrelated, male donors...
November 24, 2016: Chest
https://www.readbyqxmd.com/read/27884712/solid-lipid-nanoparticles-for-sustained-pulmonary-delivery-of-yuxingcao-essential-oil-preparation-characterization-and-in-vivo-evaluation
#6
Yun Zhao, Yue-Xing Chang, Xiao Hu, Chun-Yu Liu, Li-Hui Quan, Yong-Hong Liao
The objective of this study was to prepare solid lipid nanoparticles (SLNs) for sustained pulmonary delivery of Yuxingcao essential oil (YEO). Three YEO loaded SLNs (SLN-200, SLN-400 and SLN-800) with different particle size were prepared and separated following a high-shear homogenization technique using Compritol 888 ATO as lipid and polyvinyl alcohol as an emulsifier. The particle size, zeta potential, drug encapsulation efficiency and drug loading of the SLNs were determined to be between 171 and 812nm, -17...
November 21, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27867663/dry-powder-inhalers-a-focus-on-advancements-in-novel-drug-delivery-systems
#7
REVIEW
Piyush Mehta
Administration of drug molecules by inhalation route for treatment of respiratory diseases has the ability to deliver drugs, hormones, nucleic acids, steroids, proteins, and peptides, particularly to the site of action, improving the efficacy of the treatment and consequently lessening adverse effects of the treatment. Numerous inhalation delivery systems have been developed and studied to treat respiratory diseases such as asthma, COPD, and other pulmonary infections. The progress of disciplines such as biomaterials science, nanotechnology, particle engineering, molecular biology, and cell biology permits further improvement of the treatment capability...
2016: Journal of Drug Delivery
https://www.readbyqxmd.com/read/27865984/fabrication-of-liposomal-doxorubicin-exhibiting-ultrasensitivity-against-phospholipase-a2-for-efficient-pulmonary-drug-delivery-to-lung-cancers
#8
Tatsuaki Tagami, Yuta Ando, Tetsuya Ozeki
Phospholipase A2 (PLA2) is expressed in inflammation-related tissue, including cancer tumors. We report that a hybrid liposome composed of phospholipid (DPPC) and PEGylated block-copolymer (Poloxamer 188) can rapidly release an encapsulated hydrophilic drug in the presence of PLA2. DPPC/P188 liposomes released approximately 80% of the encapsulated calcein (a fluorescence marker) within 10min in the presence of 120 mU of PLA2 at 37°C in vitro, whereas several other liposomal compositions used for inhalation therapy did not...
November 16, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27863742/nanoparticle-transport-and-delivery-in-a-heterogeneous-pulmonary-vasculature
#9
Salman Sohrabi, Shunqiang Wang, Jifu Tan, Jiang Xu, Jie Yang, Yaling Liu
Quantitative understanding of nanoparticles delivery in a complex vascular networks is very challenging because it involves interplay of transport, hydrodynamic force, and multivalent interactions across different scales. Heterogeneous pulmonary network includes up to 16 generations of vessels in its arterial tree. Modeling the complete pulmonary vascular system in 3D is computationally unrealistic. To save computational cost, a model reconstructed from MRI scanned images is cut into an arbitrary pathway consisting of the upper 4-generations...
November 10, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27863308/in-vitro-biopharmaceutical-evaluation-of-ciprofloxacin-metal-cation-complexes-for-pulmonary-administration
#10
J Brillault, F Tewes, W Couet, J C Olivier
Pulmonary delivery of fluoroquinolones (FQs) is an interesting approach to treat lung infections as it may lead to high local concentrations while minimizing systemic exposure. However, FQs have a rapid diffusion through the lung epithelium giving the pulmonary route no advantage compared to the oral route. Interactions between FQs and metal cations form complexes which limit the diffusion through the epithelial barrier and would reduce the absorption of FQs and maintain high concentrations in the lung. The effects of this complexation depend on the FQ and the metal cations and optimum partners should be selected through in vitro experiments prior to aerosol drug formulation...
November 15, 2016: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27848886/liposomes-for-pulmonary-drug-delivery-the-role-of-formulation-and-inhalation-device-design
#11
Abdelbary Elhissi
Liposomes are established drug carriers for inhalation owing to their safety and ability to provide controlled drug release in the lung. These carriers can entrap a wide range of therapeutic molecules for delivery in large volumes to the peripheral airways using medical nebulizers. Pressurized metered inhalers (pMDIs), soft mist inhalers (SMIs) and dry powder inhalers (DPIs) can deliver relatively small quantities of medication to the lung when compared to medical nebulizers which can deliver large volumes using simple liposome preparation techniques...
November 16, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27848224/micrornas-as-therapeutics-for-future-drug-delivery-systems-in-treatment-of-lung-diseases
#12
REVIEW
Kamal Dua, Nicole G Hansbro, Paul S Foster, Philip M Hansbro
The rapid advancement in the area of microRNAs (miRNAs) from discovery to their translation into therapeutic moieties reflects their significance as important regulators in the management of disease pathology. The miRNAs can potentially be a new class of drugs in the near future for the treatment of various lung diseases, but it lacks the current knowledge how these identified therapeutic moieties can be designed into an effective, patient complaint and targeted drug delivery system. miRNAs have characteristic features like small size and low molecular weight which makes them easily translated into an effective drug delivery system...
November 15, 2016: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/27842973/pharmacokinetics-of-ethionamide-delivered-in-spray-dried-microparticles-to-the-lungs-of-guinea-pigs
#13
Lucila Garcia-Contreras, Danielle J Padilla-Carlin, Jean Sung, Jarod VerBerkmoes, Pavan Muttil, Katharina Elbert, Charles Peloquin, David Edwards, Anthony Hickey
The use of ethionamide (ETH) in treating multidrug-resistant tuberculosis is limited by severe side effects. ETH disposition after pulmonary administration in spray-dried particles might minimize systemic exposure and side effects. To explore this hypothesis, spray-dried ETH particles were optimized for performance in a dry powder aerosol generator and exposure chamber. ETH particles were administered by the intravenous (IV), oral, or pulmonary routes to guinea pigs. ETH appearance in plasma, bronchoalveolar lavage, and lung tissues was measured and subjected to noncompartmental pharmacokinetic analysis...
November 11, 2016: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27842486/advances-and-implications-in-nanotechnology-for-lung-cancer-management
#14
Sana Sarkar, Khwaja Osama, Qazi Mohammad Sajid Jamal, Mohammad Amjad Kamal, Usman Sayeed, M Kalim A Khan, Mohd Haris Siddiqui, Salman Akhtar
Lung cancer is one of the most important chronic diseases in the field of respiratory medicine. Conventional treatment strategies for lung cancer include chemotherapy, surgery and radiation therapy. These current therapies lack specificity and are limited by undesirable toxicities in normal cells, as well as a high rate of recurrence.Nanotechnological intervention has greatly revolutionized the therapy of lung cancer by surmounting the current limitations in conventional therapies. Nanoparticles (NPs) achieve preferential accumulation in the tumor cells by employing two mechanisms: passive and active targeting...
November 14, 2016: Current Drug Metabolism
https://www.readbyqxmd.com/read/27836120/computationally-efficient-analysis-of-particle-transport-and-deposition-in-a-human-whole-lung-airway-model-part-ii-dry-powder-inhaler-application
#15
Arun V Kolanjiyil, Clement Kleinstreuer, Ruxana T Sadikot
Pulmonary drug delivery is becoming a favored route for administering drugs to treat both lung and systemic diseases. Examples of lung diseases include asthma, cystic fibrosis and chronic obstructive pulmonary disease (COPD) as well as respiratory distress syndrome (ARDS) and pulmonary fibrosis. Special respiratory drugs are administered to the lungs, using an appropriate inhaler device. Next to the pressurized metered-dose inhaler (pMDI), the dry powder inhaler (DPI) is a frequently used device because of the good drug stability and a minimal need for patient coordination...
November 3, 2016: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/27835048/furosemide-in-postpartum-management-of-severe-preeclampsia-a-randomized-controlled-trial
#16
P Veena, Lakshmideepthi Perivela, S Soundara Raghavan
BACKGROUND: Hypertension in the postpartum period is a common phenomenon and is often a cause for concern. Following delivery, fluid that has been sequestered in the extravascular space is mobilized, producing a large auto-infusion of fluid from the extravascular to the intravascular compartment. As a result of this fluid mobilization process, there is an increase in central venous pressure and pulmonary capillary wedge pressure, which might favor the development of pulmonary edema. Thus, diuretics logically might be a better choice as antihypertensive medication in such a scenario...
November 11, 2016: Hypertension in Pregnancy
https://www.readbyqxmd.com/read/27831560/manipulating-the-air-filled-zebrafish-swim-bladder-as-a-neutrophilic-inflammation-model-for-acute-lung-injury
#17
Yuefei Zhang, Hongcui Liu, Junlin Yao, Yanfeng Huang, Shenlu Qin, Zheng Sun, Yingchun Xu, Shu Wan, Hongqiang Cheng, Chunqi Li, Xue Zhang, Yuehai Ke
Acute lung injury (ALI) and its more severe form, acute respiratory distress syndrome (ARDS), are life-threatening diseases that are associated with high mortality rates due to treatment limitations. Neutrophils play key roles in the pathogenesis of ALI/ARDS by promoting the inflammation and injury of the alveolar microenvironment. To date, in vivo functional approaches have been limited by the inaccessibility to the alveolar sacs, which are located at the anatomical terminal of the respiratory duct in mammals...
November 10, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27826154/high-dose-extended-interval-gentamicin-and-tobramycin-for-pediatric-inpatients-a-survey-of-canadian-hospital-pharmacists
#18
Caitlin Roy, Carolyn Gray, Lisa Ruda, Ali Bell, Jennifer Bolt
BACKGROUND: The use of high-dose, extended-interval aminoglycosides, a common practice in adult populations, is less well established for pediatric patients. In younger populations, these drugs are often administered according to a multiple daily dosing method. OBJECTIVE: To characterize prescribing practices for aminoglycosides in pediatric inpatients across Canada, with a focus on high-dose, extended-interval regimens. METHODS: This study was based on an electronic survey of pharmacists representing Canadian health care delivery organizations that provided pediatric inpatient services, which was distributed in March 2015...
September 2016: Canadian Journal of Hospital Pharmacy
https://www.readbyqxmd.com/read/27804854/aerosol-delivery-devices-for-the-treatment-of-adult-patients-in-acute-and-critical-care
#19
Arzu Ari, James B Fink
Aerosolized medications are commonly used for the treatment of patients with pulmonary diseases in acute care. While there are many drug/device combinations available on the market, new devices have been developed in the past few years. Due to differences in their operation, performance and requirements for proper use, it is important to know how to use these aerosol devices effectively during inhalation therapy both in ambulatory and acute settings. This paper reviews aerosol devices used for the treatment of patients with an emphasis on acute and critical care...
October 28, 2016: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/27796908/nanogold-gallate-chitosan-targeted-pulmonary-delivery-for-treatment-of-lung-cancer
#20
Seamkwan Komenek, Urarika Luesakul, Sanong Ekgasit, Tirayut Vilaivan, Narong Praphairaksit, Songchan Puthong, Nongnuj Muangsin
Lung cancer is one of the most of cancer type founds and a leading cause of death worldwide. Through the development of new candidate compound (3,4,5-tribenzyloxybenzoic acid (GAOBn)) and a drug delivery system of our design of quaternized chitosan-gallic acid-folic acid stabilized gold nanoparticles (Au@QCS-GA-FA) as the targeted nanocarrier for treatment of lung cancer, we have found that GAOBn not only showed high cytotoxicity against lung cancer cells (CHAGO) with more than tenfold than cisplatin, but also showed low toxicity against normal cells (CRL-1947)...
October 27, 2016: AAPS PharmSciTech
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